CA2301116A1 - Method of and apparatus for manufacturing an optical fiber preform - Google Patents

Method of and apparatus for manufacturing an optical fiber preform Download PDF

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Publication number
CA2301116A1
CA2301116A1 CA002301116A CA2301116A CA2301116A1 CA 2301116 A1 CA2301116 A1 CA 2301116A1 CA 002301116 A CA002301116 A CA 002301116A CA 2301116 A CA2301116 A CA 2301116A CA 2301116 A1 CA2301116 A1 CA 2301116A1
Authority
CA
Canada
Prior art keywords
preform
rod
tube
optical fiber
produced
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002301116A
Other languages
French (fr)
Other versions
CA2301116C (en
Inventor
Giacomo Stefano Roba
Cheryl Jane Garnham
Anna Zilnyk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Prysmian Cavi e Sistemi Energia SRL
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2301116A1 publication Critical patent/CA2301116A1/en
Application granted granted Critical
Publication of CA2301116C publication Critical patent/CA2301116C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C03B37/02754—Solid fibres drawn from hollow preforms
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
    • C03B37/01248—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing by collapsing without drawing
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
    • C03B37/0126—Means for supporting, rotating, translating the rod, tube or preform
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C03B37/02736—Means for supporting, rotating or feeding the tubes, rods, fibres or filaments to be drawn, e.g. fibre draw towers, preform alignment, butt-joining preforms or dummy parts during feeding
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/12—Drawing solid optical fibre directly from a hollow preform
    • C03B2205/14—Drawing solid optical fibre directly from a hollow preform comprising collapse of an outer tube onto an inner central solid preform rod
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/12—Drawing solid optical fibre directly from a hollow preform
    • C03B2205/16—Drawing solid optical fibre directly from a hollow preform the drawn fibre consisting of circularly symmetric core and clad

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

Optical fibers are produced by means of a direct sleeving technique that allows the collapsing of the outer jacket tube onto the inner core rod to be achieved directly during the drawing phase of optical fiber manufacture. In the course of the optical fiber manufacturing process, a preform having an enclosed annular gap/cavity is produced. The preform is produced by first aligning a rod within a sleeve tube using a centering device which also creates an air-tight seal. A vacuum may be maintained in the annular gap/cavity of this assembly. A heat source is then applied in order to collapse the extreme ends of said tube onto the respective extreme ends of the rod, the traverse speed of said heat source moving from one end to the other being controlled so to avoid any cracking in the final preform. The obtained preform is then mounted onto a drawing tower where the fiber is drawn while simultaneously collapsing the remaining portion of the tube onto the rod. A
device for aligning a rod within a tube, such as used in the preform manufacturing process, is also disclosed and comprises a threated body and rings, o-rings and splitrings.
CA002301116A 1997-08-19 1998-08-19 Method of and apparatus for manufacturing an optical fiber preform Expired - Fee Related CA2301116C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP97114268.2 1997-08-19
EP97114268 1997-08-19
US5748097P 1997-09-03 1997-09-03
US60/057,480 1997-09-03
PCT/EP1998/005259 WO1999009437A1 (en) 1997-08-19 1998-08-19 Method of and apparatus for manufacturing an optical fiber preform

Publications (2)

Publication Number Publication Date
CA2301116A1 true CA2301116A1 (en) 1999-02-25
CA2301116C CA2301116C (en) 2006-12-05

Family

ID=26145727

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002301116A Expired - Fee Related CA2301116C (en) 1997-08-19 1998-08-19 Method of and apparatus for manufacturing an optical fiber preform

Country Status (10)

Country Link
US (1) US6584808B1 (en)
EP (1) EP1005659B1 (en)
JP (1) JP4159247B2 (en)
CN (1) CN1132032C (en)
AU (1) AU738295B2 (en)
CA (1) CA2301116C (en)
DE (1) DE69834048T2 (en)
ES (1) ES2262245T3 (en)
NZ (1) NZ502779A (en)
WO (1) WO1999009437A1 (en)

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US20030167801A1 (en) * 2000-06-06 2003-09-11 Thomas Bogdahn Method for producing a full cylinder from quartz glass
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WO2002096816A1 (en) * 2001-05-30 2002-12-05 Pirelli & C. S.P.A. Method of manufacturing glass optical fibre preforms and optical fibres
JP3861663B2 (en) 2001-11-12 2006-12-20 住友電気工業株式会社 Optical fiber preform manufacturing method
DE60109653D1 (en) * 2001-11-29 2005-04-28 Pirelli & C Spa DEVICE AND METHOD FOR CHEMICAL DEPOSITION ON A STAIN ELEMENT IN A LIGHT GUIDANCE MANUFACTURING METHOD
US7779651B2 (en) 2001-12-21 2010-08-24 Prysmian Cavi E Sistemi Energia S.R.L. Process for manufacturing a micro-structured optical fibre
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US20040065119A1 (en) * 2002-10-02 2004-04-08 Fitel U.S.A. Corporation Apparatus and method for reducing end effect of an optical fiber preform
US20040107735A1 (en) * 2002-12-04 2004-06-10 Fitel Usa Corp. Rod-in-tube optical fiber preform and method
US20040139765A1 (en) * 2003-01-16 2004-07-22 Sumitomo Electric Industries, Ltd. Method of producing optical fiber preform, and optical fiber preform and optical fiber produced with the method
US7486862B2 (en) 2003-05-19 2009-02-03 Sumitomo Electric Industries, Ltd. Optical fiber and manufacturing method thereof
DE10333059A1 (en) * 2003-07-18 2005-02-17 Heraeus Tenevo Ag Method for producing an optical component made of quartz glass and hollow cylinder made of quartz glass for carrying out the method
CN1321338C (en) * 2004-02-26 2007-06-13 科毅光电股份有限公司 Pre mixing type device for melting fiber coupler and method
DE102004039645B3 (en) * 2004-08-14 2006-01-05 Heraeus Tenevo Ag Method for producing an optical component made of quartz glass as well as suitable precursor for carrying out the method
JP4505375B2 (en) * 2005-04-25 2010-07-21 パナソニック株式会社 Optical unit
CN100395203C (en) * 2005-08-17 2008-06-18 长飞光纤光缆有限公司 Method for preparing preformod of optical fiber with low water peak in large size
US8658880B2 (en) * 2005-12-09 2014-02-25 Zt3 Technologies, Inc. Methods of drawing wire arrays
US20070131269A1 (en) * 2005-12-09 2007-06-14 Biprodas Dutta High density nanowire arrays in glassy matrix
US7559215B2 (en) * 2005-12-09 2009-07-14 Zt3 Technologies, Inc. Methods of drawing high density nanowire arrays in a glassy matrix
CN101139162B (en) * 2007-08-02 2010-08-04 宁波大学 Equipment for preparing heavy metallic oxide glass fibre-optical prefabricated rod cladding sheathed tube
CN101549962B (en) * 2009-05-15 2012-01-11 长飞光纤光缆有限公司 Method and device for removing coating solidifying volatile material in optical fibre drawing process
EP2655274B1 (en) 2010-12-23 2017-08-23 Prysmian S.p.A. Method of manufacturing an optical fibre glass preform
WO2012084050A1 (en) 2010-12-23 2012-06-28 Prysmian S.P.A. Low macrobending loss single-mode optical fibre
JP2012137615A (en) * 2010-12-27 2012-07-19 Sumitomo Electric Ind Ltd Optical fiber manufacturing method
US11577982B2 (en) * 2015-10-07 2023-02-14 Corning Incorporated Method to prevent cracks in optical fiber preforms
CN106082629B (en) * 2016-08-08 2018-11-16 通鼎互联信息股份有限公司 A kind of RIC plug rod feeder
CN106746585B (en) * 2016-12-07 2023-03-28 青海中利光纤技术有限公司 Optical fiber perform conical head processingequipment
CN106698918B (en) * 2017-02-28 2020-02-18 长飞光纤光缆股份有限公司 Sleeve rod fusion cage
NL2020974B1 (en) * 2018-05-23 2019-12-02 Draka Comteq Bv A device, system and method for forming a core rod for optical fibers
US20220112115A1 (en) * 2020-10-14 2022-04-14 Anatoly Kishinevski Laminated Glass Tubes and Their Manufacture
CN113213750B (en) * 2021-04-27 2022-03-18 武汉光盛通光电科技有限公司 Special optical fiber perform sealing device
FR3123912B1 (en) * 2021-06-15 2023-06-16 Draka Comteq France Method of manufacturing a preform for a multi-core optical fiber and method of manufacturing multi-core optical fibers.
CN113277728B (en) * 2021-07-01 2023-06-09 中国计量大学 Optical fiber drawing furnace suitable for fluoride glass
CN114409242B (en) * 2021-12-01 2023-08-18 浙江富通光纤技术有限公司 Process for manufacturing optical fiber preform and optical fiber
CN117864755B (en) * 2024-01-08 2024-07-26 苏州然玓光电科技有限公司 Optical fiber perform carries excellent frame

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Also Published As

Publication number Publication date
US6584808B1 (en) 2003-07-01
WO1999009437A1 (en) 1999-02-25
NZ502779A (en) 2002-10-25
EP1005659B1 (en) 2006-03-29
DE69834048T2 (en) 2006-12-07
CN1132032C (en) 2003-12-24
AU9622298A (en) 1999-03-08
AU738295B2 (en) 2001-09-13
CA2301116C (en) 2006-12-05
JP4159247B2 (en) 2008-10-01
EP1005659A1 (en) 2000-06-07
ES2262245T3 (en) 2006-11-16
DE69834048D1 (en) 2006-05-18
JP2002501871A (en) 2002-01-22
CN1267369A (en) 2000-09-20

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MKLA Lapsed

Effective date: 20160819